- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F02K - Jet-propulsion plants
- F02K 3/115 - Heating the by-pass flow by means of indirect heat exchange
Patent holdings for IPC class F02K 3/115
Total number of patents in this class: 208
10-year publication summary
|
23
|
20
|
15
|
14
|
12
|
9
|
15
|
11
|
18
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9946 |
52 |
| Safran Aircraft Engines | 6576 |
35 |
| Rolls-Royce North American Technologies, Inc. | 1130 |
21 |
| General Electric Company | 13822 |
17 |
| Rolls-Royce PLC | 3188 |
14 |
| Pratt & Whitney Canada Corp. | 5356 |
6 |
| Unison Industries, LLC | 214 |
6 |
| Rolls-Royce Corporation | 1681 |
5 |
| Safran Nacelles | 778 |
5 |
| Hamilton Sundstrand Corporation | 5019 |
4 |
| MTU Aero Engines AG | 713 |
4 |
| Safran Aero Boosters | 126 |
4 |
| Liebherr-Aerospace Toulouse SAS | 159 |
3 |
| Sumitomo Precision Products Co., Ltd. | 324 |
3 |
| Airbus Operations S.A.S. | 2529 |
2 |
| Airbus Helicopters | 936 |
2 |
| Echogen Power Systems, LLC | 63 |
2 |
| GKN Aerospace Sweden AB | 97 |
2 |
| Safran Aero Boosters SA | 185 |
2 |
| Raytheon Technologies Corporation | 141 |
2 |
| Other owners | 17 |